Scoring-machine.



S. T. HOBBS.

SCORING MACHINE.

APPLICATION HLED msc. 28. 1911.

Emma May 30, 1916.

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SAMUEL T. HOBBS, OF WORCESTER, lVIASSAOI-IUSETTS, ASSIGNOR TO HOBBS MANUFAG- TURING COMPANY, OF WORGESTER, MASSACH'USETTS, A CORPORATION OF MASSA- CHUSETTS.

SCORING-IVIAOHINE.

Application filed December 28, 1911.

To all w/wm it may concem:

Be it known that SAMUEL T. I-IoBBs, a citizen of the United States, residing at VVorcester, in the county of l/Vorcester and Commonwealth of Massachusetts, have invented a new and useful Improvement in scoring-Machines, of which the following is a specification, accompanied by drawings forming-a part of the same.

My inventio-nrelates to that class of scoring machines which are used for scoring cardboard and the like, and particularly to the method of journaling the scoring disk.

The objects of my invention are to secure a more durable bearing for the scoring disk,

to facilitate the removal of the disk, and to automatically take up any wear in the bearing of the disk so as to prevent the scoring disk from dropping into injurious contact with the bed roll. I accomplish these objects by the construction and arrangelnent of parts as herenafter described and polnted out in the annexed claims.

In the accompanying drawings I have represented so much of a scoring' machine as is necessary to illustrate the Character of my present invention. t

Figure 1 is a side view of one of the brackets in which the scoring disk is supported, showing the transverse bearing to which the bracket is attached in sectional view and also showing the relative positions of the scoring disk and the bed roll. Fig. 2 is an edge view of the same. Fig. 3 is a detached perspective view of the retaining spring for holding the scoring disk in its bearings. Fig. 4 is a detached edge view of the scoring disk.

Similar reference characters refer to similar parts in the different figures.

In the accompanying drawings 1 denotes a dovetailed bar which eXtends transversely across the scoring machine and upon which are adjustably supported a series of brackets 2 by means of clamping screws 3. Connected with the bracket 2 is a V-shaped angle bar 4, capable of being adjusted on its conrnection with the bracket 2 by means of an adjusting screw 5. J ournaled at the lower corner of the angle bar 4 is a scoring disk or cutter 6, consisting o-f a steel disk having a sharpened edge and provided with gudgeons 7, 7 consisting of a bronze stud driven tightly into the scoring disk 6.

The angle bar 4 is recessed to receive the.

Speefication of Letters Patent.

Patented May 30, 1916.

Serial No. 668,298.

scoring disk 6 and is provided with semicireular journal bearings 8 to receive the gudgeons 7. A blade spring 9 is attached to theangle bar 4 by a screw 10. The blade spring 9 is bifurcated to form prongs 11, 11 which extend on either side of the scoring disk 6, and are bent upwardly at 12, 12 to press against the under side of the gudgeons 7 to hold the latter in close contact with the semlcircular bearings 8. As the gudgeons 7 or the bearings 8 wear by continued use, the prongs 11, 11 of the spring 9 will take up the wear and maintain the gudgeons 7 in close running contact with their bearings. The relation of the scoring disk 6 to the angle bar 4 is always maintained by the tension of the elastic prongs 11, 11 against the gudgeons 7. The tips of the elastic prongs 11, 11 are bent downwardly at 13, 13, Fig. 3, to enable the elastio prongs 11 to be eXpanded by the pressure of the gudgeons 7 against the tips 13 when the scoring disk 6 is inserted in position in the angle bar 4.

The retaining spring 9 not only holds the scoring disk 6 in its highest position, but it enables the disk to be readily removed and inserted without detaching the spring. By means of the adjusting screw 5, the angle bar 4 may be swung on its pivotal joint with the bracket 2 in order to adjust the position of the scoring disk '6 relatively to a bed roll 14 and, as the scoring disk is always maintained in its hghest position, the distance between the peripheries of the scoring disk 6 and the bed roll 14 may be delicately adljusted and constantly maintained. As the gudgeons 7 rotate with the scoring disk 6, the bearing surface is between the gudgeons 7 and the recesses 8 and is greater 'than the bearing surface of a scoring disk rotating on a fixed pin, which is the common form of construction.

The bracket 2, adjustably supported upon the transverse dovetailed bar 1, and the angle bar 4, adjustably held in the bracket, are substantially like the eorresponding parts of scoring machines now in use. has been the practice, however, to place a fixed pin in the angle bar 4 upon which the scoring disk was journaled, requiring the withdrawal of the pin in order to remove the scoring disk. This form of construction limits the bearing surface of the scoring disk, soon causing lost motion between the pin and rotating disk. VVhen the bearing Itv of the scoring disk became Worn, it would fallby gravity into contact with the bed roll lt'and a delioate adjustment of the'angle i bedV roll.

bar 4 failed to Vary the position of the scoring disk which normally rested upon the By lmy present improvement the vsooring disk responds to the slightest move- -ment of the angle bar, and is capable of beo ing'adjusted within a small distance of the i opiesrofrthls patent may :be obtained for bed roll and held therewith.

I claim o 1. In a scoring machine, a bed roll, a Vframework fixed with relation to said bed roll and providing bearing recesses facing the surface of said bed roll, a scoring disk for coperation with said bed roll having gudgeons disposed `in said recesses and propermanently out of contact jecting beyond the same, and a spring bearing'against said gudgeons on opposite sdes of said disk to retain said gudgeons ieldingly within said recesses, the tip o' said SAMUEL T. HOBBS.

VVitnesses PENELOPE CoMBnRBAoi-I, NELLIE WHALEN.

flve cents each, by addressing' the Commissioner of Patents Washington, D. O." 

